1st Marine Division UNIS

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2/14Marine
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1st Marine Division UNIS

Post by 2/14Marine » Wed Aug 29, 2018 12:47 pm

I know, I know! Just what you want another thread about Marine Corps Unit Numerical Identification System or UNIS. We Marines love our acronyms. After looking at allot of pictures and information I have a theory. Wait here me out. I know we are all familiar with the system used by the 3rd, 4th, & 6th Marine Divisions that made up the 5th Amphibious Corps. These are the Horizontal Diamond, Half Circle, and Rectangle made up of dashed lines. There was some confusion with the diamond initially that it was for 1st Marine Division but now suspected to represent 3rd Maine Division. Below is a good break down of the system. Most of the pictures I have seen of this system have been from Iwo Jima and only for 3rd, 4th, & 6th who participated in the battle. I have not seen the dashed Vertical Diamond for 1st Marine Division, Dashed Square for 2nd Marine Division, or Dashed Circle for 6th Marine Division. The 1st, 2nd, and 6th Marine Divisions made up 3rd Amphibious Corps. So I’m thinking the dashed system was used by the Marine divisions of 5th Amphibious Corps for the invasion of Iwo Jima.

I feel that the Divisions under 3rd Amphibious Corps used a different system to identify their units. My feelings are bases 1st Marine Division General Order 174, Standard Operating Procedure for Marking Equipment dated January 1945 and pictures. I have tried to find pictures with dates and specific units to confirm this. At least for 1st Marine Division I feel that the information based on the order is correct. Unlike 5th Amphibious Corps that used a symbol for the whole division and a number for the Regiment and Company it looks like at least for 1st Marine Division they used a solid symbol for the Regiment
know some of this information has been posted before. I reposted it so anyone new to the subject wouldn’t have to search for it.
Please provide your thoughts, opinions, and pictures
Attachments
UNIS.jpg
UNIS.jpg (87.78 KiB) Viewed 942 times
4th MarDiv 1.PNG
4th MarDiv 1.PNG (22.15 KiB) Viewed 942 times
4th MarDiv2.JPG
4th MarDiv2.JPG (31 KiB) Viewed 942 times
5th MarDiv.PNG
5th MarDiv.PNG (25.77 KiB) Viewed 943 times
LtCol USMC R
1954 M38A1
1941 GP 9270 DOD 4-6-41
1942 GPW 557 DOD 2-26-42 "Liberty Risk"

2/14Marine
Sergeant Major of the Gee
Sergeant Major of the Gee
Posts: 289
Joined: Sat Feb 28, 2009 12:00 pm
Location: Palmer, TX

Re: 1st Marine Division UNIS

Post by 2/14Marine » Wed Aug 29, 2018 12:52 pm

4th Marine Divison
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Capture.JPG
Capture.JPG (39.63 KiB) Viewed 942 times
IMG_0328.JPG
IMG_0328.JPG (82.39 KiB) Viewed 941 times
LtCol USMC R
1954 M38A1
1941 GP 9270 DOD 4-6-41
1942 GPW 557 DOD 2-26-42 "Liberty Risk"

2/14Marine
Sergeant Major of the Gee
Sergeant Major of the Gee
Posts: 289
Joined: Sat Feb 28, 2009 12:00 pm
Location: Palmer, TX

Re: 1st Marine Division UNIS

Post by 2/14Marine » Wed Aug 29, 2018 12:54 pm

3rd Marine Division
Attachments
3rd MarDiv.jpg
3rd MarDiv.jpg (144.97 KiB) Viewed 941 times
LtCol USMC R
1954 M38A1
1941 GP 9270 DOD 4-6-41
1942 GPW 557 DOD 2-26-42 "Liberty Risk"

2/14Marine
Sergeant Major of the Gee
Sergeant Major of the Gee
Posts: 289
Joined: Sat Feb 28, 2009 12:00 pm
Location: Palmer, TX

Re: 1st Marine Division UNIS

Post by 2/14Marine » Wed Aug 29, 2018 12:59 pm

5th Marine Division
Attachments
7th 2.JPG
7th 2.JPG (68.82 KiB) Viewed 940 times
7th 1.JPG
7th 1.JPG (71.15 KiB) Viewed 939 times
LtCol USMC R
1954 M38A1
1941 GP 9270 DOD 4-6-41
1942 GPW 557 DOD 2-26-42 "Liberty Risk"

2/14Marine
Sergeant Major of the Gee
Sergeant Major of the Gee
Posts: 289
Joined: Sat Feb 28, 2009 12:00 pm
Location: Palmer, TX

Re: 1st Marine Division UNIS

Post by 2/14Marine » Wed Aug 29, 2018 1:02 pm

1st Division General Order 174, January 1945. SOP for Marking Equipment. This must have gone into effect prior to 1945 since allot of these pictures were on Peleliu.
Attachments
1st Div UNIS 1st Marines.jpg
1st Div UNIS 1st Marines.jpg (185.99 KiB) Viewed 940 times
1st Div UNIS 5th Marines.jpg
1st Div UNIS 5th Marines.jpg (186.5 KiB) Viewed 940 times
1st Div UNIS 7th Marines.jpg
1st Div UNIS 7th Marines.jpg (184.22 KiB) Viewed 940 times
1st Div UNIS 11th Marines.jpg
1st Div UNIS 11th Marines.jpg (195.43 KiB) Viewed 940 times
post-7194-0-10990600-1413605695.jpg
post-7194-0-10990600-1413605695.jpg (218.72 KiB) Viewed 940 times
Placement.jpg
Placement.jpg (14.5 KiB) Viewed 940 times
LtCol USMC R
1954 M38A1
1941 GP 9270 DOD 4-6-41
1942 GPW 557 DOD 2-26-42 "Liberty Risk"


2/14Marine
Sergeant Major of the Gee
Sergeant Major of the Gee
Posts: 289
Joined: Sat Feb 28, 2009 12:00 pm
Location: Palmer, TX

Re: 1st Marine Division UNIS

Post by 2/14Marine » Wed Aug 29, 2018 1:09 pm

5th Marine Regiment.

The 2nd picture is with the Div CG the Marine with no shirt is Col Harry "Bucky" Harris. The 5th Marine Regiment CO.
The Water Bull pic is Okinawa and the jeeps on the rail car is Chia is I remember correctly.
Attachments
5th 1.JPG
5th 1.JPG (87.75 KiB) Viewed 938 times
5 3.JPG
5 3.JPG (100.15 KiB) Viewed 938 times
5 2.JPG
5 2.JPG (97.69 KiB) Viewed 938 times
IMG_0332.JPG
IMG_0332.JPG (85.74 KiB) Viewed 938 times
LtCol USMC R
1954 M38A1
1941 GP 9270 DOD 4-6-41
1942 GPW 557 DOD 2-26-42 "Liberty Risk"

2/14Marine
Sergeant Major of the Gee
Sergeant Major of the Gee
Posts: 289
Joined: Sat Feb 28, 2009 12:00 pm
Location: Palmer, TX

Re: 1st Marine Division UNIS

Post by 2/14Marine » Wed Aug 29, 2018 1:15 pm

7th Marine Regiment
Attachments
7 5.JPG
7 5.JPG (75.32 KiB) Viewed 938 times
7 3.JPG
7 3.JPG (131.2 KiB) Viewed 938 times
7 2.JPG
7 2.JPG (108.38 KiB) Viewed 938 times
7 1.JPG
7 1.JPG (206.35 KiB) Viewed 938 times
LtCol USMC R
1954 M38A1
1941 GP 9270 DOD 4-6-41
1942 GPW 557 DOD 2-26-42 "Liberty Risk"

2/14Marine
Sergeant Major of the Gee
Sergeant Major of the Gee
Posts: 289
Joined: Sat Feb 28, 2009 12:00 pm
Location: Palmer, TX

Re: 1st Marine Division UNIS

Post by 2/14Marine » Wed Aug 29, 2018 1:18 pm

11th Marine Regiment. This picture is from Okinawa
Attachments
11th.JPG
11th.JPG (130.34 KiB) Viewed 938 times
LtCol USMC R
1954 M38A1
1941 GP 9270 DOD 4-6-41
1942 GPW 557 DOD 2-26-42 "Liberty Risk"

2/14Marine
Sergeant Major of the Gee
Sergeant Major of the Gee
Posts: 289
Joined: Sat Feb 28, 2009 12:00 pm
Location: Palmer, TX

Re: 1st Marine Division UNIS

Post by 2/14Marine » Wed Aug 29, 2018 1:21 pm

1st Tank Bn
Attachments
Tank 1.JPG
Tank 1.JPG (70.34 KiB) Viewed 938 times
LtCol USMC R
1954 M38A1
1941 GP 9270 DOD 4-6-41
1942 GPW 557 DOD 2-26-42 "Liberty Risk"

2/14Marine
Sergeant Major of the Gee
Sergeant Major of the Gee
Posts: 289
Joined: Sat Feb 28, 2009 12:00 pm
Location: Palmer, TX

Re: 1st Marine Division UNIS

Post by 2/14Marine » Wed Aug 29, 2018 1:27 pm

I haven't found any pictures for 1st Marine Division at Peleliu. It was expected that fighting would only last 3 days. Very few photographers and film crews went ashore. It ended up going from Sept 15th - Nov 27, 1944. The 1st Marine Division was pulled from the front lines after 6 days of intense fighting and sustaining 70% casualties. I wondering if this may be the reason for so few pictures of 1st Marine Division.

I will continue to post other pictures as I find them and ask that you do the same. I have found some other Unit Identifiers but have been unable to ID the unit associated with them.
LtCol USMC R
1954 M38A1
1941 GP 9270 DOD 4-6-41
1942 GPW 557 DOD 2-26-42 "Liberty Risk"

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